5331-00-580-9773 O-RING Index 5330-00-580-9778 SEAL,PLAIN ENCASED

National Stock Number:
5310-00-580-9775

Federal Supply Class:
5310

National Item Identification Number:
005809775

Description:
WASHER,FLAT

Detail:
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.


Manufacturer Information:
3307369PC7A66131FMS CORP
3307369PC7A80064NAVAL SHIP SYSTEMS COMMAND
N743PC7A26505GROVE VALVE OPERATIONS
S3463626505GROVE VALVE OPERATIONS


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.238 INCHES MINIMUM AND 0.242 INCHES MAXIMUM
OVERALL DIAMETER0.624 INCHES MINIMUM AND 0.628 INCHES MAXIMUM
MATERIALPLASTIC POLYAMIDE (NYLON) OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.027 INCHES MINIMUM AND 0.033 INCHES MAXIMUM


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